The cement industry must evolve or become obsolete.
The spirit of science lies in constant questioning and exploration, keeping us forever curious about the world.
数学之美不仅在于其抽象的优雅,还在于其建模和解决现实世界问题的深刻能力。
浮动汇率是将国家间相互依存与国内经济政策自主性结合起来的一种手段。